Pin-clutch.



M. SAPO.

P|N CLUTCH. APPLICATION FILED AUG-5,1916- 1 ,2]. 9,872. Patented Mar..20, 1917.

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MORRIS SAPO, OF NEW YORK, N. Y.

PIN-CLUTCH.

Application filed August 5, 1916.

To all whom it may concern:

Be it known that T, Monnis SAPO, a citizen of the United States, and aresident of the city of New York, borough of Manhattan, in the countyand State of New York, have invented a new and improved Pinlutch, ofwhich the following is a full, clear, and exact description.

My invention relates to a pin clutch. object thereof is to provide asimple, effective and inconspicuous clutch which can be fitted fromeither end and which will positively grip the pin so that the pin cannotbe released accidentally.

\Vith the above and other objects in view, the nature of which will morefully appear as the description proceeds, the invention consists in thenovel construction, combination and arrangement of parts as herein fullydescribed, illustrated and claimed.

In the accompanying drawings, forming part of the application, similarcharacters of reference indicate corresponding parts in all the views.

Figure 1 is an elevation of a pin provided with an embodiment of myinvention;

Fig. 2 is a vertical section on line 2-2, Fig. 4,;

Fig. 3 is a similar section showing the clutch in position releasing thepin; and

Fig. 4 is a transverse section on line 4i-, Fig. 2.

Referring to the drawings, 5 is a carrier, which is in the shape of adisk having an elliptical contour. It has a rectangular cutout 6 in thelongitudinal axis thereof. The disk has also grooves 7 in thelongitudinal axis thereof which are the bearings for a pin 8 to whichthe clutch is to be locked.

A longitudinally-grooved block 9 is mounted to slide in the cut-out 6,the groove fitting the pin 8 snugly. The block 9 has a transverse opennotch 10 in one side thereof substantially midway between the ends ofthe block. This notch has substantially the depth of the groove in theblock.

A tongue 11 has a circular head 12 which fits into a circular recess 13in the carrier 5. The carrier has a triangular cut-out 14 one apex ofwhich merges with the circular recess 13, and the base opposite the saidapex merges with the cut-out 6. The triangular cut-out, as well as therecess 13, is disposed on the transverse axis of they disk which formsthe carrier, and the slope of the sides of said triangular cut-out 14are such that Specification of Letters Patent.

The I Patented Mar. 20, 1917.

Serial No. 113,252.

the tongue 11 will not touch the sides when the block 9 is moved to abutagainst either end of the cut-out 6. The length of the tongue 11 is suchthat the end thereof enters the groove of the block 9. The said end issharpened to jam the pin as the block is moved from either end of thecut-out (3 to the middle thereof.

The carrier 5 has alining recesses 15 entering the triangular cut-out 14and disposed substantially at right angles to the transverse axis of thecarrier. Each of said re cesses constitutes a pocket for a coil spring16, one end of which abuts against the bot tom of the pocket and theother against the tongue 11. The tendency of the springs is to maintainthe tongue in the short axis of the carrier and, therefore, move theblock midway between the ends of the cut-out6. The block9 has a stud 17which projects through a slot 18 formed in housing 19 which incloses thecarrier and the various members thereon. The stud 17 is provided with ahead 20 whereby the block may be moved within the cut-out 6.

The housing 9 has apertures in the peripheral wall registering with thegroove 7 in the carrier through which the pin may be entered. Inpassing" the pin through either end of the clutch, the pin will comeinto engagement with the end of the tongue in the grooved block 6 andforce the tongue, and therewith the block, to move to the position shownin Fig. 3, thereby allowing a free passage to the pin. When the casingof the clutch is released, the compressed spring 16 will move the tongueand therewith the block, bringing the sharp end of the tongue againstthe body of the pin and jamming the pin in the carrier. To release theclutch from the pin it. is necessary to displace the block 9 through themedium of the head 20, whereby the tongue is disengaged from the pin,which may then be withdrawn by simply pulling the clutch.

,imLclann:

1. A pin clutch comprising a carrier, a block slidably mounted in thecarrier and having a passage for a pin, a tongue mounted to swing in thecarrier and engaging the block, said tongue having a sharp end lying inthe passage of block, a yielding member in the carrier engaging thetongue and normally tending to bring the said extremity of the tongueinto the passage.

2. A pin clutch comprising a carrier in the shape of an elongated disk,said disk having a longitudinal rectangular cut-out, a grooved blockmounted to slide in the cutout, means extending from the block forsliding the block, a tongue pivotally mounted in the carrier andengaging the block with the free end thereof, and oppositely disposedsprings in the carrier engaging the tongue intended to bring the freeend of said tongue into the groove of the block.

3. A pin. clutch comprising an ovalshaped disk provided with arectangular cut-out in the longitudinal axis thereof, a grooved blockmounted to slide in the cutout, said disk having slots alining with thegrooved block, a tongue pivotally mounted in the carrier and engagingthe block with the free end thereof, oppositely disposed springs in thecarrier engaging the tongue for maintaining the free end of said tonguein the groove of the block, a housing inclosing the carrier, a slot insaid housing, a stud projecting from the block through the slot in thehousing, and a head on the pin outside the housing for facilitating thedisplacement of the block in the carrier.

a l. A pin clutch comprising a carrier in the shape of an oval diskprovided with a cut-out in the longitudinal axis thereof, and atriangular cut-out in the transverse axis thereof to one side of therectangular cut-out, one base of said triangular cut-out merging intothe rectangular cut-out, a

tongue mounted to swing in the triangular cut-out of the carrier so thatthe free end thereof enters the rectangular cut-out, a slotted blockslidably mounted in the rectangular cut-out and engaged by the free endof the tongue, said carrier having a1ining pockets entering thetriangular cut-out and disposed parallelly to the longitudinal axis ofthe carrier, a spring in each pocket engaging the tongue whereby thetongue has a tendency to be disposed at right angles to the rectangularcut-out, said carrier having groo 'es in the longitudinal axis thereofalining with the grooved block, a casing for the carrier, said casinghaving a slot, and a stud projecting from the grooved block through theslot whereby said bloclc may be displaced, substantially as and for thepurpose set forth.

A pin clutch comprising an apertured carrier for receiving a pin, agrooved block slidably mounted in the carrier, the groove of the hlocltaiining with the apertures of the block, a tongue mounted to swing inthe carrier, said tongue having a sharp end adapted to enter the grooveof the block, means engaging the tongue and normally tending to bringthe sharp extremity of the tongue into the groove, and a stud fordisplacing the block in the carrier, substantially as and for thepurpose set forth.

MORRIS SAPO.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

